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Dual RF channel linearizer channel amplification device, and telecommunication satellite comprising said device

A technology of radio frequency channel and circuit channel, which is applied in the direction of high frequency amplifier, amplifier combination, improved amplifier to reduce nonlinear distortion, etc.

Active Publication Date: 2012-07-04
THALES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the repeater comprises a large number of channels, each channel comprising a dedicated linearizer channel amplifier arrangement, and since each linearizer channel amplifier arrangement comprises several independent modules, this architecture has problems in terms of space requirements and production costs, These problems are exacerbated by the large number of channels

Method used

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  • Dual RF channel linearizer channel amplification device, and telecommunication satellite comprising said device
  • Dual RF channel linearizer channel amplification device, and telecommunication satellite comprising said device
  • Dual RF channel linearizer channel amplification device, and telecommunication satellite comprising said device

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Embodiment Construction

[0016] figure 1 Circuit diagram shown for a linearizer circuit channel amplifier arrangement for dual RF channels comprising two independent radio frequency systems RF1, RF2 related to connection to the same remote control and telemetry module TMTC 30 two different transmission channels. Said remote control and telemetry module 30 (common to both systems RF1, RF2) may if necessary contain a single physical address for all remote control TC and telemetry TM signals related to both systems RF1, RF2. The routing and management of the signals specific to each of the systems RF1, RF2 is performed inside the remote control and telemetry module 30 by dedicated electronics (for example of the ASIC type). The remote control and telemetry module 30 communicates with the ground station by means of a payload 70 comprising a transceiver associated with a system placed on the transmitting and receiving antennas of the satellite platform. The remote control and telemetry module 30 communic...

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Abstract

The invention relates to a dual RF channel linearizer channel amplification device to be installed onboard a telecommunication satellite, comprising two separate radiofrequency channels (RF1, RF2), each radiofrequency channel (RF1, RF2) corresponding to a communication channel of radiofrequency signals and comprising a channel amplification module (10, 20), the two radiofrequency channels (RF1, RF2) being connected to a single remote control and telemetry module (30) for routing and managing remote control signals dedicated to each of the two channel amplification modules (10, 20), as well as for managing the telemetry signals generated by the channel amplification modules (10, 20). The invention can particularly be used in the field of satellite telecommunications, and in particular for the radiofrequency transmission channels of satellite repeaters.

Description

technical field [0001] The present invention relates to a linearizer circuit channel amplifier device for dual radio frequency (RF) channels and a telecommunication satellite incorporating said device. The linearization circuit channel amplifier device is especially applied in the field of satellite telecommunication, and especially the radio frequency transmission system of satellite repeater. Background technique [0002] In most payload architectures, a repeater installed on a satellite includes a number of independent radio frequency channels, each of which includes an item of equipment for preamplifying the radio frequency signal received by the repeater, the equipment being designed to provide the required power at the input of the TWT. The traveling wave tube is a microwave frequency power amplifier used to forward the received signal to the user. The traveling wave tube operates at near saturation power, which causes a non-linear response from the tube which can be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/32H03F3/189H03F3/68H04B7/185
CPCH03F1/32H04B7/18515H03F3/189H04B7/15H03F3/68
Inventor G·莫舒恩J·梅纳德R·罗德里格斯P·若贝尔特
Owner THALES SA